US11479928B2 - Screed accessory for levelling uncured concrete surfaces - Google Patents
Screed accessory for levelling uncured concrete surfaces Download PDFInfo
- Publication number
- US11479928B2 US11479928B2 US16/962,204 US201916962204A US11479928B2 US 11479928 B2 US11479928 B2 US 11479928B2 US 201916962204 A US201916962204 A US 201916962204A US 11479928 B2 US11479928 B2 US 11479928B2
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- US
- United States
- Prior art keywords
- screed head
- removable
- levelling
- removable screed
- angle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active, expires
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- 239000004567 concrete Substances 0.000 title claims abstract description 16
- 230000008878 coupling Effects 0.000 claims abstract description 27
- 238000010168 coupling process Methods 0.000 claims abstract description 27
- 238000005859 coupling reaction Methods 0.000 claims abstract description 27
- 230000007246 mechanism Effects 0.000 claims description 36
- 238000012806 monitoring device Methods 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 description 6
- 238000009499 grossing Methods 0.000 description 1
- 235000015250 liver sausages Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000135 prohibitive effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/22—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
- E01C19/42—Machines for imparting a smooth finish to freshly-laid paving courses other than by rolling, tamping or vibrating
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/22—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
- E01C19/23—Rollers therefor; Such rollers usable also for compacting soil
- E01C19/26—Rollers therefor; Such rollers usable also for compacting soil self-propelled or fitted to road vehicles
- E01C19/266—Rollers therefor; Such rollers usable also for compacting soil self-propelled or fitted to road vehicles fitted to vehicles, road-construction or earth-moving machinery, e.g. auxiliary roll readily movable to operative position ; provided with means for facilitating transport; Means for transporting rollers; Arrangements or attachments for converting vehicles into rollers, e.g. rolling sleeves for wheels
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/22—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
- E01C19/23—Rollers therefor; Such rollers usable also for compacting soil
- E01C19/28—Vibrated rollers or rollers subjected to impacts, e.g. hammering blows
- E01C19/288—Vibrated rollers or rollers subjected to impacts, e.g. hammering blows adapted for monitoring characteristics of the material being compacted, e.g. indicating resonant frequency, measuring degree of compaction, by measuring values, detectable on the roller; using detected values to control operation of the roller, e.g. automatic adjustment of vibration responsive to such measurements
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/22—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
- E01C19/30—Tamping or vibrating apparatus other than rollers ; Devices for ramming individual paving elements
- E01C19/34—Power-driven rammers or tampers, e.g. air-hammer impacted shoes for ramming stone-sett paving; Hand-actuated ramming or tamping machines, e.g. tampers with manually hoisted dropping weight
- E01C19/40—Power-driven rammers or tampers, e.g. air-hammer impacted shoes for ramming stone-sett paving; Hand-actuated ramming or tamping machines, e.g. tampers with manually hoisted dropping weight adapted to impart a smooth finish to the paving, e.g. tamping or vibrating finishers
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/22—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
- E01C19/30—Tamping or vibrating apparatus other than rollers ; Devices for ramming individual paving elements
- E01C19/34—Power-driven rammers or tampers, e.g. air-hammer impacted shoes for ramming stone-sett paving; Hand-actuated ramming or tamping machines, e.g. tampers with manually hoisted dropping weight
- E01C19/40—Power-driven rammers or tampers, e.g. air-hammer impacted shoes for ramming stone-sett paving; Hand-actuated ramming or tamping machines, e.g. tampers with manually hoisted dropping weight adapted to impart a smooth finish to the paving, e.g. tamping or vibrating finishers
- E01C19/405—Power-driven rammers or tampers, e.g. air-hammer impacted shoes for ramming stone-sett paving; Hand-actuated ramming or tamping machines, e.g. tampers with manually hoisted dropping weight adapted to impart a smooth finish to the paving, e.g. tamping or vibrating finishers with spreading-out, levelling or smoothing means other than the tamping or vibrating means for compacting or smoothing, e.g. with screws for spreading-out the previously dumped material, with non-vibratory lengthwise reciprocated smoothing beam
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B2/00—Friction-grip releasable fastenings
- F16B2/20—Clips, i.e. with gripping action effected solely by the inherent resistance to deformation of the material of the fastening
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F21/00—Implements for finishing work on buildings
- E04F21/20—Implements for finishing work on buildings for laying flooring
- E04F21/24—Implements for finishing work on buildings for laying flooring of masses made in situ, e.g. smoothing tools
- E04F21/241—Elongated smoothing blades or plates, e.g. screed apparatus
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F21/00—Implements for finishing work on buildings
- E04F21/20—Implements for finishing work on buildings for laying flooring
- E04F21/24—Implements for finishing work on buildings for laying flooring of masses made in situ, e.g. smoothing tools
- E04F21/241—Elongated smoothing blades or plates, e.g. screed apparatus
- E04F21/242—Elongated smoothing blades or plates, e.g. screed apparatus with vibrating means, e.g. vibrating screeds
Definitions
- the present invention relates to a detachable stand-alone accessory for the levelling of surfaces relating particularly but not exclusively to the field of uncured concrete laying and levelling.
- the present invention adapts aspects of the larger machinery to create a compact, lightweight attachable and detachable accessory for general purpose machines.
- the compact accessory described herein consists substantially of the Screed Head component part of such machines only, but with several improvements and innovations. For example, as with traditional machines elevation is continually adjusted by two hydraulic cylinders receiving electronic signals from laser receivers, as is common to the art. However, the present accessory invention features a more efficient single centre-mounted hydraulic cylinder able to continuously maintain the screed head at ninety degrees to the horizontal.
- an accessory for levelling uncured concrete surfaces comprising a screed head with a blade and a coupling component for detachably coupling fixedly to a telescopic boom of a general-purpose vehicle.
- the accessory may comprise a slope cylinder, for example for continuously maintaining the screed head at ninety degrees to the horizontal.
- the slope cylinder may be a single hydraulic cylinder.
- the slope cylinder may be centre-mounted.
- the slope cylinder may be a single centre-mounted hydraulic cylinder.
- the accessory may comprise laser receivers.
- the slope cylinder may be operable to accurately control and/or maintain the screed head, in use, at a working angle of ninety degrees to the horizontal, for example in response to data supplied by laser receivers.
- the accessory may comprise a frame and/or a working head.
- the slope cylinder may sit atop the frame, e.g. and may thereby be separate from the working head.
- the working head may comprise the blade.
- the accessory may comprise a main housing, e.g. for the blade.
- the screed head may comprise a main body.
- the main body may comprise the frame (where provided).
- the slope cylinder may be positioned on the main body, for example such that, when the main housing is moved by the slope cylinder, the frame remains immovable relative to a telescopic boom of a general-purpose vehicle to which the accessory is fixedly coupled.
- the accessory may comprise levelling cylinders, e.g. height adjusting levelling cylinders.
- the accessory may comprise laser receivers.
- the height adjusting levelling cylinders (where provided) may comprise two hydraulic cylinders, e.g. for continually adjusting elevation (for example based on received electronic signals from the laser receivers).
- the coupling component may be configured to be hooked to a telescopic boom of a general-purpose vehicle.
- the coupling component may comprise one or more latches, e.g. one or more hinged latches.
- the coupling component may comprise a hand operated hinged latch, for example with a hook.
- the hook may be able to be snapped in place in a single movement, e.g. so as to pinch together the coupling component and the edge of, any or all sides or places on the periphery of, and/or the end of a telescopic boom of a general-purpose vehicle (for example in order to increase the rigidity of the connection).
- the coupling component may comprise side-facing and/or forward-facing lugs, for example with holes for the fixing of bolts in a variety of places (e.g. to gain added rigidity of the connection between the accessory and a telescopic boom of a general-purpose vehicle).
- the accessory may comprise one or more of an auger, a roller, a vibrator and a sprinkler system.
- an accessory for the levelling of uncured concrete, sand, soil or any other moist slurry able to be rapidly attached to and detached from a general-purpose vehicle.
- the accessory may comprise or include levelling cylinders, e.g. height adjusting levelling cylinders.
- the accessory may comprise or be equipped with a slope cylinder.
- the accessory may comprise a screed head main body.
- the accessory may comprise a main housing, for example for the auger, blade, roller and/or vibrator.
- the accessory may comprise a frame section or frame.
- the slope cylinder (where provided) may be positioned on the screed head main body.
- the slope cylinder may be positioned on the screed head main body such that only the main housing (where provided) for the auger, blade, roller and vibrator is moved by the slope cylinder, e.g. whilst the frame section or frame (where provided) of the accessory remains immovable in relation the vehicle's boom.
- the accessory may comprise or be equipped with one or more of a blade, a coupling component, an auger, a roller, a vibrator and/or a sprinkler system.
- the coupling component for use in an accessory as described herein.
- the coupling component may comprise bolt holes in a multiplicity of places for added rigidity of the link with the vehicle armature.
- the coupling component may comprise or be equipped with side-facing and/or forward-facing lugs, for example with holes for the fixing of bolts in a variety of places (e.g. to gain added rigidity to the connection between the levelling accessory and the vehicle armature or boom, for example to which it is attached or attachable).
- the coupling component may comprise or be equipped with a latch, (e.g. a hinged latch), for example which may be hand operated or operable.
- the latch may comprise or have a hook, e.g. able to be snapped in place in a single movement (for example so as to pinch together the coupling component and a portion of the boom or armature of a general-purpose vehicle, e.g. the edge of, any or all sides or places on the periphery of, and/or the end of the or a vehicle's (e.g. general-purpose vehicle's) armature or boom, so as to increase the rigidity of the connection).
- a latch e.g. a hinged latch
- the latch may comprise or have a hook, e.g. able to be snapped in place in a single movement (for example so as to pinch together the coupling component and a portion of the boom or armature of a general-purpose vehicle, e.g. the edge of, any or all sides or places on
- FIG. 1 illustrates a perspective view of the accessory
- FIG. 2 illustrates an underside view of the working head (which makes contact with screed);
- FIGS. 3 a and 3 b show side elevations of the working head
- FIG. 4 shows a top view of the accessory
- FIG. 5 shows a front elevation of the accessory
- FIG. 6 illustrates a perspective view of a removable screed head according to another example
- FIG. 7 illustrates an underside view of the removable screed head shown in FIG. 6 ;
- FIG. 8 illustrates a side view of the removable screed head show in FIG. 6 taken from a first side
- FIG. 9 illustrates a perspective view of the underside of the removable screed head shown in FIG. 6 ;
- FIG. 10 illustrates a side view of the removable screed head shown in FIG. 6 taken from a second side
- FIG. 11 illustrates a plan view of the removable screed head shown in FIG. 6 ;
- FIG. 12 illustrates a rear view of the removable screed head shown in FIG. 6 ;
- FIG. 13 illustrates a perspective view of a removable screed head according to another example
- FIG. 14 illustrates a perspective view of a removable screed head according to another example
- FIG. 15 illustrates a perspective view of a removable screed head according to an example attached to a general-purpose vehicle.
- FIG. 16 illustrates a side view of the removable screed head attached to the general-purpose vehicle shown in FIG. 15 .
- the accessory kit would be equipped with a secure universal linkage or coupling component able to couple fixedly with most general-purpose vehicles and tractors and telehandlers equipped or not equipped with a telescopic boom.
- This coupling component would be designed to be hooked to the controlling armature of general-purpose vehicles. It may be equipped with bolt holes, lugs and or hinged latches to ensure rigid fixing to a telescopic boom.
- a hardening compound is added by hand.
- the present invention provides for a tank with suitable pipes and taps for the automatic application of this hardening compound during the levelling operation.
- a further refinement relates to the positioning of the working head where traditional machines exert control of the horizontal setting with adjusters built into the body of the screed head, but the present invention fulfils this function with a single centrally mounted Slope Cylinder that sits atop of the frame of the accessory being therefore separate from the working head.
- the accessory as described offers a major reduction in capital investment with a negligible increase in the labour requirement by comparison to the cost of the complete four wheeled levelling equipment.
- the present invention provides an Accessory Kit possessing the main elements of a screed head as seen on traditional concrete levelling equipment with the addition of a Roller 6 , a Coupling Component 3 , a Sprinkler System 8 for the application of concrete hardening compound and a novel Slope Cylinder 2 for the more immediate and accurate control of the screed head to continuously maintain a working angle of 90 degrees to the horizontal according to data supplied by laser receivers.
- the accessory also includes two levelling cylinders 1 , a blade 4 , an auger 5 and a vibrator 7 .
- the coupling component 3 is arranged for detachably coupling fixedly to a telescopic boom of a general-purpose vehicle.
- the slope cylinder 2 is positioned on the screed head main body such that only the main housing for the auger 5 , blade 4 , roller 6 and vibrator 7 is moved by the slope cylinder 2 .
- the frame section of the accessory remains immovable in relation to the vehicle's boom.
- the coupling component 3 includes bolt holes in a multiplicity of places for added rigidity of the link with the vehicle armature.
- the coupling component 3 may also include side-facing and forward-facing lugs with holes for the fixing of bolts in a variety of places to gain added rigidity to the connection between the levelling accessory and the vehicle armature.
- the coupling component 3 may be equipped with a hand operated hinged latch with a hook able to be snapped in place in a single movement so as to pinch together the component and the edge of, any or all sides or places on the periphery of, the end of the vehicle's armature so as to increase the rigidity of the connection.
- FIGS. 6 to 12 there is a removable screed head 11 according to another example.
- the removable screed head 11 may comprise levelling components 12 .
- the removable screed head 11 may comprise an angle adjustment mechanism 13 .
- the removable screed head 11 may comprise an elevation or height or vertical adjustment mechanism 14 .
- the removable screed head 11 may comprise a sprinkler system 15 .
- the accessory or screed head 11 may comprise one or more attachments (for example as shown in the FIG. 1 example), for removably attaching or securing the removable screed head 11 to a telescopic boom of a general-purpose vehicle.
- the levelling components 12 may comprise one or more of a blade 12 a , an auger 12 b , a vibrator 12 c and a roller (as shown in the FIG. 1 example).
- the levelling blade 12 a may have a width w (viewed in front), which may be a or the major dimension of the levelling components 12 and/or the levelling blade 12 a .
- the levelling components 12 may be at least partially contained or retained in a housing 12 d.
- the removable screed head 11 may comprise a support structure 16 , which may comprise or be a frame 16 .
- the levelling components 12 may be pivotally attached to the support structure 16 , so as to be pivotal about a horizontal axis A relative to the support structure 16 .
- the or each attachment may be attached to the support structure 16 .
- the angle adjustment mechanism 13 may be configured or configurable to alter, in use, the angle ⁇ (shown in FIG. 10 ) of the levelling components 12 about the horizontal axis A.
- the horizontal axis A may be substantially parallel (e.g. parallel) to the width w of the levelling blade 12 a as viewed in front.
- the angle adjustment mechanism 13 may be configured or configurable to alter the angle of the levelling components 12 (e.g. the levelling blade 12 a ) relative to the or each attachment, for example such that the levelling components 12 have (e.g. the levelling blade 12 a has) a working angle which is a substantially perpendicular angle ⁇ (e.g. a ninety-degree angle) relative to a surface S over which the removable screed head 11 is or the levelling components 12 are located in use.
- a substantially perpendicular angle ⁇ e.g. a ninety-degree angle
- the angle adjustment mechanism 13 may comprise a first end attached or coupled (for example directly or indirectly) to the attachment.
- the angle adjustment mechanism 13 may comprise a second end attached (for example directly or indirectly) to the levelling components 12 .
- the angle adjustment mechanism 13 may be operable or actuatable to alter the angle ⁇ of the levelling components 12 (e.g. the levelling blade 12 a ) relative to the attachment, whilst the angle of the attachment relative to a surface S over which the removable screed head 11 is located remains substantially unaltered.
- the angle adjustment mechanism 13 may comprise one or more slope cylinders 130 .
- the or each slope cylinder 130 may be a hydraulic or pneumatic cylinder.
- the angle adjustment mechanism 13 may comprise one or more link or linkage members 13 b .
- the or each link or linkage member 131 may comprise first and second (e.g. opposed) ends 131 a , 131 b .
- the or each link or linkage member 131 may be attached (e.g. hingedly) at or adjacent its first end 131 a to a or the slope cylinder 130 .
- the or each link or linkage member 131 may be attached (e.g. non-hingedly) at or adjacent its second end 131 b to the levelling components 12 , e.g. to or via the housing 12 d .
- the second end 131 b of the or each link or linkage member 131 may be attached (e.g. hingedly) to the frame 16 .
- the angle adjustment mechanism 13 may comprise one or more upright members 132 .
- the or each upright member 132 may be or comprise a fixed plate 132 .
- the or each fixed plate 132 may have first and second (e.g. opposed) ends 132 a , 132 b .
- the or each fixed plate 132 may be connected at a first end 132 a thereof to the slope cylinder 130 .
- the or each fixed plate 132 may be secured or fixed (e.g. non-hingedly) at or adjacent its second end 132 b to the to the frame 16 .
- the or each slope cylinder 130 may comprise first and second (e.g. opposed) ends 130 a , 13 b .
- the first end 130 a of the slope cylinder 130 may be hingedly connected to the fixed pate 132 .
- the second end 130 b of the slope cylinder 130 may be hingedly connected to the link or linkage member 131 .
- the or each slope cylinder 130 may be extendable and/or retractable, in use, for example as indicated by arrows B (see FIG. 8 ).
- slope cylinder 130 may be positioned substantially centrally along the width w of the blade 12 a , as viewed in front. Where more than one slope cylinder 130 is provided they may be evenly spaced along the width w of the levelling blade 12 a.
- the angle adjustment mechanism 13 may comprise one or more monitoring devices for example for monitoring, in use, the level of a surface S over which the removable screed head 11 is located or moved.
- the or each monitoring device may comprise a laser or laser receiver.
- Monitoring the level of the surface S may comprise monitoring or measuring the angle (e.g. relative to vertical) of the surface S, e.g. at the location of the removable screed head 11 or the levelling components 12 thereof.
- the removable screed head 11 may comprise a feedback system, for example configured or configurable to actuate the angle adjustment mechanism 13 , (e.g. based on the monitored level of the surface S over or above which the removable screed head 11 is located). Actuation of the angle adjustment mechanism 13 may thereby adjust the angle ⁇ of the levelling components 12 into (or maintain the levelling components 12 at) a substantially perpendicular angle ⁇ to said surface S.
- the elevation or height or vertical adjustment mechanism 14 may be for adjusting the height of the levelling components 12 (e.g. in use) over a surface S to be levelled (e.g. an uncured concrete surface to be levelled).
- the elevation or height or vertical adjustment mechanism 14 may comprise height adjustment cylinders 140 .
- the sprinkler system 15 may comprise a trough 150 for holding a hardening compound.
- the sprinkler system 15 may be configured or configurable to release (e.g. in a controlled manner) some of the hardening compound, e.g. in use.
- the sprinkler system 15 may be configured or configurable to release (e.g. in a controlled manner) a metered or controlled amount of hardening compound from the trough 150 , e.g. in use.
- the or each attachment may be configured to removably attach the removable screed head 11 to a boom of a general-purpose vehicle.
- the or each attachment may comprise a quick release mechanism (e.g. such that the removable screed head 11 may be rapidly removed or removable from a or the boom of a general-purpose vehicle).
- the or each attachment may comprise one or more latches.
- the or each attachment or the or each latch may comprise one or more hooks.
- the or each attachment may be fixed or secured to the or each fixing plate 132 (e.g. upright member 132 ).
- the removable screed head 11 may comprise a control system.
- the control system may be configured or configurable to control one or more of the angle adjustment mechanism 13 (e.g. the or each slope cylinder 130 ), the elevation or height or vertical adjustment mechanism 14 and/or the sprinkler system 15 .
- the control system may be located (at least in part) on or adjacent the removable screed head 11 .
- the control system may be located (at least in part) spaced from the removable screed head 11 .
- the removable screed head 21 may comprise levelling components 22 (for example comprising one or more of a levelling blade 22 a , a levelling auger 22 b and a levelling vibrator 22 c ), an angle adjustment mechanism 23 , an elevation or height or vertical adjustment mechanism 24 and/or a sprinkler system 25 .
- the removable screed head 21 may comprise one or more attachments 27 , for example which may comprise one or more latches 27 a .
- the or each attachment may be secured or fixed to a fixed plate 26 of the angle adjustment mechanism 23 .
- the or each latch 27 a may comprise a hook 27 b .
- the attachment 27 may comprise an abutment 27 c , for example which may comprise a projection.
- the projection may comprise a plate.
- the abutment 27 c may have an aperture, for example through its thickness.
- the abutment 27 c and/or aperture may be configured to receive (e.g. in a locking fashion) a projection of a general-purpose vehicle or a telescopic boom thereof.
- plural hooks 27 b they may be aligned with one another, e.g. co-aligned (for example configured to receive a bar or beam of a general-purpose vehicle and/or a telescopic boom thereof).
- FIG. 14 there is shown a removable screed head 31 according to another example.
- the removable screed head 31 show in FIG. 14 differs from the removable screed head 21 shown in FIG. 13 in that the levelling components 32 further comprise a roller 32 d and that a sprinkler system is not provided.
- the screed head 41 comprises levelling components 42 (e.g. a blade 42 a , an auger 42 b , a vibrator 42 c and/or a roller 42 d ), an angle adjustment mechanism 43 , an elevation or height or vertical adjustment mechanism 44 and one or more attachments 47 which comprises one or more latches 47 a .
- Each latch 47 a comprises a hook 47 b .
- the hooks 47 b are attached (removably) to a bar B of the telescopic boom T.
- the screed head 41 also includes a stand-alone controller C for controlling the operation of the screed head 41 independently of the vehicle V to which it is connected.
- an input device I a so-called Human Machine Interface (HMI)
- HMI Human Machine Interface
- the input device I communicates wirelessly with the controller C, but it is also envisaged that this may be achieved through a wired connection.
- the removable screed head 41 may be attached (e.g. removably) to the telescopic boom T of a general-purpose vehicle V using the one or more attachments 47 .
- the removable screed head 41 may then be moved over a surface to be levelled, for example by extending and/or retracting the telescopic boom T and/or by moving the general-purpose vehicle V.
- the levelling components 42 may be continuously or selectively operated to level a surface thereunder.
- the removable screed head 41 may be installed on a vehicle or machine without a telescopic boom, for example a tractor, skid loader or skid steer. In such examples, the removable screed head 41 could be moved along the surface as the vehicle V moves, rather than via movement of the boom.
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- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Road Paving Machines (AREA)
Abstract
Description
Claims (20)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1800599 | 2018-01-15 | ||
GBGB1800599.1A GB201800599D0 (en) | 2018-01-15 | 2018-01-15 | Blade accessory kit and method |
GB1800599.1 | 2018-01-15 | ||
PCT/GB2019/050107 WO2019138257A1 (en) | 2018-01-15 | 2019-01-15 | Screed accessory for levelling uncured concrete surfaces |
Publications (2)
Publication Number | Publication Date |
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US20210062438A1 US20210062438A1 (en) | 2021-03-04 |
US11479928B2 true US11479928B2 (en) | 2022-10-25 |
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ID=61256300
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US16/962,204 Active 2039-05-06 US11479928B2 (en) | 2018-01-15 | 2019-01-15 | Screed accessory for levelling uncured concrete surfaces |
Country Status (3)
Country | Link |
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US (1) | US11479928B2 (en) |
GB (2) | GB201800599D0 (en) |
WO (1) | WO2019138257A1 (en) |
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Also Published As
Publication number | Publication date |
---|---|
US20210062438A1 (en) | 2021-03-04 |
GB201800599D0 (en) | 2018-02-28 |
GB2585519A (en) | 2021-01-13 |
GB202012734D0 (en) | 2020-09-30 |
WO2019138257A1 (en) | 2019-07-18 |
GB2585519B (en) | 2022-06-08 |
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